Nothing you can do to adjust. Huskys website on the specs for the 235 lists the oil pump type as fixed flow. Not many homeowner grade saws have an adjustable oiler.
The one think you could try is changing bar oil. What kind are you using?? Some are thicker than others. And some mfg's like stihl offer two types, winter (thinner) and summer(thicker). The TSC stuff that is 5.99/gal is pretty thick.